The DV4Home2 attaches to digital amateur radio systems via internet. The used communication methods do not require to do special settings in your internet router. There is no manual port-forwarding required.
As long as your PC, laptop, tablet or cellphone is in the same network as your DV4Home2 is, you can remote-control the DV4Home2 on that device.
Only if you want to control the DV4Home2 from outside your network, a port forwarding of port 80 is required. But beware, we do not recommend this, especially as we currently do not provide any security mechanisms like password requests on the control panel.
On first start, or after installation of a full-image, the DV4Home2 request you to enter some configuration data by presenting you a link on the OLED display. Use any device that has a browser to remotely enter the configuration data by entering the link shown in the display.
On the other hand you can use the device itself to edit your configuration, if you have a HDMI monitor, keyboard and mouse connected. On the desktop that starts automatically you find a link named DV4. double click it, or use right-click → execute to open a browser window. It will automatically redirect you to the configuration page.
The settings should be mostly self-explanatory. Call is your amateur radio call, the locator can be found with tools like this one: qthlocator. For each communication system you can choose from different servers, please always select a server near to your location. In case you do not have registered for a CCS7 ID, you can do that right here.